Manipulation under anaesthetic (MUA) is an established treatment for frozen shoulder. Frozen shoulder may coexist with other shoulder conditions, whose treatment may differ from MUA. One such condition is calcific tendonitis. Only one study to date documents treatment of patients with frozen shoulder and concurrent calcific tendinitis. The objective was to demonstrate that MUA and injection is a satisfactory treatment for concurrent diagnosis of frozen shoulder and calcific tendinitis. Patients with a clinical diagnosis of frozen shoulder and radiological evidence of calcific tendinitis were prospectively recruited from Jan 1999 – Jan 2009. Treatment by MUA and injection was performed. Clinical examination, Oxford Shoulder Scores and need for further treatment were used as outcome measures. Fourteen patients (median age 53.5 years) were identified with frozen shoulder and concurrent calcific tendinitis. Significant improvement in both Oxford Shoulder Score and range of movement was achieved following MUA (P values < 0.001). Two patients required further treatment (not for calcific tendinitis). This improvement was maintained in the long term (median 107 wks). It is our belief that MUA and injection is a safe and effective treatment, addressing the frozen shoulder with MUA takes priority, and as such frozen shoulder “trumps” other pathologies occurring simultaneously